Apparatus for casting steel



(No Model.)

W. M. (TOOPER. APPARATUS FOR CASTING STEEL.

N0. 423,375. Patented Mar. 11, 1890.

NITED STATES,

PATENT @FFICE.

WILLIiUl M. COOPER, OF ALLEGHENY, PEUNSYLVANIA.

APPARATUS Foa SPECIFICATION forming a a- Letters CASTING STEEL.

Patent No. 423,375, dated March 11, 1890.

Application filed January 14, 1888. Renewed February 15, 1890. Serial No. 340,643. No model.)

' To all whom it may concern.-

Be it known that 1, WILLIAM M. COOPER, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in Apparatus for Casting Steel; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to an apparatus for casting steel; and it consists of the novel combination and construction of devices, as will be hereinafter fully described and claimed.

- i In. the present method of making steel castings air is absorbed into the molten mass, which by its oxygen, combined with the variol1s other elements going to make the steel,

causes an oxidation and a consequent forma. tion of gas or blow holes, which tends.v to weaken the casting when the same solidifies. To obviate this is the object of my invention.

In the accompanying drawings, Figure 11's a front elevation of my improved apparatus for casting ingots, partly shown in section the betterto show the working parts. Fig. 2 is a plan view of the same. Fig. dis a detail sectional view taken through a part of the like indestructible material, having an open ing immediately beneath the port or discharge-pointf of the ladle c. This ladle 0, containing the molten steel, is placed on the topof the mold a at the proper time the asbestus pecking cl forming an air-tight connection between the two. Extending diagonally through the bottom and side walls g of the ladle cis an eye-sight h, consisting of a tapering circular or cone-shaped opening having fitted at the top, by attachment to the casing of the indie c, a suitably-constructed frame, containing a lens or piece of heavy glasss,

enabling the operator to see the interior of the mold a and determine when a suili'cient quantity of metal has been let into the same.

passage or channel 2', to which is attached a short section of pipe having attached thereto a coupling jof any desired co nstrnction,wl1ich will enable the operator to easily and quickly attach along flexible jointed metallic tubing. This tubing consists of anumber of short sections' 1c of tubing attached together by couplings, which will admit of each section 7n being bent or revolved in any desired position. To the end section 70 of this tubing next the ladle cis attached acock I, which may be set to form a passage from the interior of the quarter-turn of this cocl; Z a continuous passage is formed from the interior of the mold a to the other extremity of the tubing k. I now provide a tank or receiver m and attach the same to the sectional tubing 7;, which establishes a communication between the mold ct and receiver m. An air-pump '11., connected by a suitable tube 0 to this receiver m, aitords a means for exhausting the air from the same.

In operation the ladle c is filled with molten metal and conveyed'by suitable means to the mold-a and placed 'onthe top of the same,

tion 'betweenthe two air-tight. The sectional tubing 70 is attached bymeans of the coupling "j to the ladle ,o, and the cock I is set to form a passage from the mold a to the exterior of the same. \Vhilethese arrangements are being quickly made the airpump n is exhausting the air from the receiver m until a complete or partial vacuum is obtained. The discharge-port f of the ladlec' isopened, which form 'a passage from the molda to the receiver m. The air rushing int-'0 the vacuum in thereceive'r m is rapidly exhausted from the mold a, and the metal fallingto thebbtexhausting the air fromthe receiver m is continued throughoutthe entire process of casting. The operator, by means of the eye-sight h, is enabled to know at what time the mold a is full, at which time'the valve 1' is closed,

To one side ofthc portf of the ladle c is athea-sbestns packing d. renderingthe connecmold a to the exterior of the same, or by a allows the molten metal toentert-hemold a, p and at the same time the cock Z is adjusted to tom and rolling o'rflowing toward the sides of" the mold loses its gases. The operation of rojo 2; receiver to which one end of the tubing is connected, and an; air-pump foi' exhausting the receiver, substantially as and for the purpose described. v

a Patti-C115 for castin st-eel the osed and the ladle conveyed to ahothr niold and the same: operation continued. 7

ention, whabI Havingthus deseribetl my inv ela1m,a.nd deslre to secure by LettersPatent, 1s I 4. In an p 1. In an apparatus such as (l scz-ibed, the eombinatiQn,with a. mold and superi'tllp colnbination consistin of the 1 01d a and a, 1ad1e, of 4;, seepional fiexibIy-gointed ipe 7e, lneans or makin a1 air-tigh connection coupled With,t11e 1a 11e'a.n5i"o9mx1gun1catmg with the bottoxn of the ladle e, tile sectional with, the mo by uter p pgss ages tlxbitlg 7c, c'onneeted. to the receiver m an the formo V inithe laal e o-Whxeh the lad e :Ind 11 r121 10 tlon W'Lh the o posito end f t 6 mg Is conn 5: and interor x the mold a, the cock 1, the receiver a ai u p fer eshalistkn" 1111a rec V0? s b 1 air'pu L, as n rp se stanti 11y es and f0 e e doscrx ea. set erv V e r 5. 1e pparatus 0 L 'tegl the 2. In an a P x-atl-ls 1 eeetie steel, eleale combin Lion of m rest5n n th havin an e ehei e A fee ee d.i gonally V mold. formtng 1: :01:21; Lhere hx-eez-ltthe base there I, one end of See/1 e ewith, a va vecl e L e eee ee ei ht?) e in we 11 130 e tlxelaxile to th la 1e and :en en L 1 e eein -exterierl throng 4 teripy: of he mol Q whxch the o g-a len s poslte ezuiof the e ls'co-nnecfed, and an fair-pump connectedvto the receiver, subsfanf many as desoribed.- In testimony that I claim the foregoing I v hereunto afilxmy signature.

' WILLIAM M. COOPER. In presence of FRANK W. SMITH,.

J. A. HERRON.

3:3 (fii jlfe i c i s of the, ladfie and' havin therein, substantially as and for the purpose described.

3. In an apparatus for casting steel, the combination, with a mold, of a superimposed ladle 0, having an egress-opening in its bottom and a transverse 'oxhaustion-passage 2', also opening at one end through the bottom thereof, a sectional flexibly-jointed tnbingk, 

